Electropneumatic organ-valve.



R. HOPE-JONES, DECD.

C. HOPE-JONES. TEMPORARY ADMINISTRATRIX.

ELECTROPNEUMATIO ORGAN VALVE.

APPLICATION FILED nov. 14. 19M.

1,199,792. Patented Oct. 3,1916.

Wanna 1W1: mun/A STATES PATENT oFFicE.

ROBERT HOPE-J ONES, DECEASED, LATE OF NORTH TONAWANDA, NEW YORK, BYCECIL HOPE-J ONES, TEMFORARY ADMINISTRATRIX, OF NORTH TONAWANDA, NEWYORK.

To all whom it may concern:

Be it known that RoBnn'r Horn-Jones,

deceased, and late of North Tonawanda, in

the county of Niagara and State of New York, did invent certain new anduseful of this specification, and to .the referencenumerals markedthereon.

The present invention relates to the socalled electropneumatic valvesused in the construction of-organs and it has for an object. to providecertain improvements in the arrangement of the parts, whereby theirconstruction is simplified and greater accuracy obtained in theiroperation.

To these and other ends the invention consists n certain improvementsand combinations of parts, all as will be hereinafter more fullydescribed, the novel features being pointed out in theclaims at the endof the specification. p

In the drawings: Figure 1 is a detail viewshowing in section a portionof an '-organ action including a valve constructed in accordance withthe invention and illustrating' its association with the cooperatingparts of an organ with which it is employed; Fig. 2' is a bottom planview; Fig.

3 is a longitudinal vertical sectional view; Fig. 4: is a crosssectionalview taken on the line 4"4 of Fig. 2; Fig. 5 is a plan view of the innersideof the cap showing the reverse side of the portion illustrated inFig. 2; Fig, 6 is a plan View of the'separating piece or. spacingmember; Fig. 7 is a bottom plan view of the'upper section of the casing;Fig. 8 is an enlarged detail.

sectional -view showing the capped end of one. of the pole piecesembedded in the upp normally rests. The side walls of the ports 1 one ofthese valves is shown arranged in its operative position in a wind chest1 cont'aining its complementary secondary valve Specification of Ietters Patent.

Patented Oct. 3, 1916.

Application filed November 14, 1914. Serial No. 872,179.

mechanism'2 mentioned above. The primary I valve comprises a three-partcasing composed of an upper section A, abottom secti-on B and anintermediatespacer C, the two portions C and B being detachablysupported on A and held in proper position thereon by means of dowelpins 3. The upper section A of the casing is attached permanently to theelectromagnet it, the pole pieces 5 of which are embedded in the uppersectionin such position so thattheir extremities are slightly out ofalinement withthe lower face of said section. The shallow recesses thusformed are filled with solder or other non-magnetic metal as indicatedby 5 in Fig. 8, the purpose; being to prevent the freezing, as it iscalled, of the armature-against the ends of the pole pieces when theiron of these two elementsmomes into contact. I

The windway in the chamber is formed by recesses in the three. parts A,Band C, the shape of which is quite important in order that the currentsof air may flow into or out of the casing and be quickly distributed onopposite sides of the armature disk 6. The upper section A of the casingis provided with an inlet aperture or port a located between the polepieces 5 which is closed upon the attraction of the armature 6 by theenergizing of theknagnet 4. The. latter draws the armature securely intoengagement with the circular seat 7 formed between the curved ends orchannels 8 which are provided to insure the escape of air admitted,through the aperture a at all points around the circumference of thearmature. The casing A is also provided with an inlet a. ,In the bottomportion of thecasing B is a recess 9 provided with a space into whichprojectsa p'air of-curved' nipples or bosses 10 provided with aperturesor ports 11, on which the armature 6 11 are tapered, particularly asshown in Figs. 4 and 5 and are of suflicient height to support the disk6 a short distance below the ends of the pole pieces and the faceqof the;upper section A of'the casing.

' The curvednipples 10 f0rm a broad seat for the armature and also serveto distribute the air pressure evenly over a comparatively overcome theair pressure when it is desired to unseat the disk.

In manufacturing these devices it will be appreciated that the faces ofthe bosses surrounding the ports against which the disk 6 rests shouldbe perfectly plain and smooth and it will be seen that difliculties areencountered in obtaining these conditions when the surfaces are locatedbeneath the upper edges of the side walls of the lower section of thecasing. In order to overcome this difiiculty' and to simplify themachineoperations in making the valve, the faces of the bosses 10 and the faceof the edge of the lower member B of the casing are arranged in the sameplane, and in order to obtain the required space in which to permitoperation of the valve disk 6, a spacing member C is arranged betweenthe parts A and B of the casing. This spacing member C also performs theadditional function of centering the disk and is, therefore, providedwith inwardly extending projections 12 which will be seen illustratedparticularly in Fig. 6. Between the spacing member and the section A ofthe casing is inserted a fine screen 13 of bolting cloth preventing theentrance of dust or other foreign particles, which might be carriedthrough the passages a or a and interfere with the proper operation ofthe armature.

The parts of the casing are preferably made of cast metal and aredetachably held together by the dowel pins 3 Which are rigidly securedin the portion A of the casing, the parts .being held in theirrelatively I operative position by frictional engagement with the pins,so that they may be easily separated by the use of a suitable instrumentto permit inspection of the valve disk 6. The arrangement of the portsand passages in the parts of the casing is such as to permit the disk 6to alternately open and close the ports 11 and the passage a with thegreatest possible speed and when in one position or the other to closethe apertures and prevent the leakage of air.

The invention claimed is:

1. In an electro-pneurnatic organ valve, the combinationwith tworecessed members having ports and an apertured spacing member locatedbetween the recessed members, of a valve head cooperating with saidports,

an electro1nagnet.for operating it and cenv tering projections on the.spacing member cooperating with the valve head.

2. In an electro-pneumatic organ valve, the combination with a hollowcasing comprisingtwo outer sections provided with opposed ports and anintermediate spacing member, of an electromagnet mounted on one of theouter sections, an armature cooperating therewith and playing betweensaid ports, and fingers on the spacing member cooperating with thearmature to center it in respect to said ports.

3. In an electro-pneumatic valve mechanism, the combination with acasing composed of two outer sections and an intermediate spacing memberforming a chamber, said sections having inlet and outlet ports, anelectroinagnet'having its pole pieces secured in one of the sections,and a movable armature cooperating with the magnet and with said portsand centering projections on the intermediate member cooperating withsaid armature.

4. In an electro-pneumatic valve mechanism, the combinationwith a casingcomposed of upper and lower sections recessed in their opposing facesand each provided with inwardly projecting portions having faces lyingin the planes of the faces of the respective sections, said projectionsbeing provided with air ports, of an electromagnet having its polepieces embedded in the projection of. the upper section, an armaturecooperating with the ports and magnet and of a boss on the upper sectionextending into the chamber, and provided with a port, an electromagnethaving its pole pieces embedded in said boss, an inwardly" extendingprojection, on the lower section also pro vided with a port, an armaturecooperating with said magnet and said ports and means on theintermediate section of the casing serving to center sa idarmature.

oEoIL HOPE-Jones,

Temporary admim'stratriw of the estate of Robert Hope-Jones, deceased.Witnesses I JOHN LARKIN, RICHARD J. LYNCH.

